CBSE 10th Standard Maths Subject Circles Ncert Exemplar 3 Marks Questions 2021
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CBSE 10th Standard Maths Subject Circles Ncert Exemplar 3 Marks Questions 2021
10th Standard CBSE
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Reg.No. :
Maths
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The tangent at a point C of a circle and a diameter AB when extended intersect at P.If \(\angle PCA=110^0\), find \(\angle CBA\) [see figure] Join C with centre O
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In figure, AB and CD are common tangents to two circles of unequal radii.Prove that AB=CD.
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From an external point P, two tangents, PA and PB are drawn to a circle with centre O.At one point E on the circle tangent is drawn which intersect PA and PB at C and D, respectively.If PA = 10cm, find the perimeter of the triangle PCD.
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If AB is a chord of a circle with centre O, AOC is a diameter and AT is the tangent at A as shown in figure.Prove that \(\angle BAT=\angle ACB\)
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AB is a diameter of a circle and AC is its chord such that \(\angle BAC=30°\). If the tangent at C intersects AB extended at D, then prove that BC = BD.
3 Marks
